Rolling-mill bearing



J. N. OUiNN. ROLLING MILL BEARING,

APPLICATION FILED JAN,15, 1920.

1,405,438. Patented Feb. 7, 1922.

4 SHEETS-SHEET 1.

J. N. QUINN. ROLLING MILL BEARING.

APPLICATION FILED .IAN. I5, I920- 1,405,438. Patented Feb. 7, 1922.

4 SHEETS-SHEET 2.

j Illl la J. N/QUINN. ROLLING MILL BEARING, APPLICATION FILED JAN. 15.1920.

Patented Feb. 7, 1922.

4 SHEETS-SHEET 3- 1. N. QUINN. ROLLING MILL BEARING,

APPLICATION FILED JAN.15| I920.

Patented Feb. 7, 1922.

4 SHEETSSHEET 4.

' vide an extensible journal bearing in which 'tnursDr T all whom itmayconcern:

Be itknown that 1, JOHN N. Qumm'a citizen of the UnitedStates, andresiding at Cincinnati, in the countyof Hamilton and State of Ohio, haveinvented a new and use- I ful Improvement in Rolling-llliill Bearings,

of which the following specification is atull disclosure; I MylIlVGIllZlOIl'IGlEIlIBS to anilmprovement in Journal bearingsparticularly adaptablefor rolling: mills of the jump mill type, in,

which one of the rollsis movable within its housing and separated fromits companion roll by the work as thrust weenxthe rolls.

One of theobjects of the invention is to provide a bearing abutment forone'of the rolls ofiarolling mill, which is very substantial inconstructionto withstandfora long period heavy thrust-blows or pressureimparted thereto by the rolls in. starting and rolling the work betweenthe rolls; I I V Another object of the vinvention is to pro videextensible bearings for the journal of one roll of a pairof companionrolls of a rollingimill for quickly, easily and accurately controllingand regulating the degree of'roll separation, whereby the work can beuniformlyrolled to a'definite gauge thickness, or for producingproductsof'di-fierent dimensionsby the 'continuous'operation of the samemill, or for progressively changing or reducing the dimension of'a pieceofwork by successive passes between the rolls.

Another object of the invention is to prothe extension is produced'bytapering plates oppositely disposed and centrally overple and effectiveoperating mechanism' for extending and contracting the bearing and;

for micrometrically indicatingthe degreeof bearing 6Xt8I1S10I1. 7 1 vOther features and ob ects of the inventionwill be more fully set forthinthe detail description of the accompanying drawings," forming a partof "this specification, and in the drawings like characters of referencedenote corresponding parts throughout the several views, of which'f V-Fig. 1 is a siile elevation'ot a rollingmill, illustrating my improvedextensible bearing mills in. use. i

or inserted betion on theline 66,"0f Fig. 2, illustrating nism.

5 RoLLIN -MILL B A INGKffV i vSmeffication of Letters l at e iittApplieation fi led January is; 1920. saga no. 351,718..

some it." uinn, os omc'muiarroniof mechanism "tor operating the same,andifor quickly and definitely adjusting and -1-imiting the degree ofrollseparation of aarolling mill as applied to Fig. 2. is horizontal.section of to the dial and-its'correlatedjpart's.

.;.-Fig. 4 is atop plan view of the same."

the iordinary' housings of .Fig. 5- is: an s end, View 0f. the structureshown in Fig. 3'5 H Fig. 6 is an: enlargeddetail vertical seeone sideofithe labutment means .for the upper roll,j-each side ofthe saidabutment i a means being similar in construction. ii 7 i Fig. 7 1S3vertical sectlonal view: onpt-he l1ne7-7ofF1g. 6. i

ing'a modification of my mechanism.

Figs. Band 14 are respectively horizontal 1 ,Figs. 8, 9, 1o and ll arertsp'fe t vuy h v zontal sections on 1i11e ,.,8 and 11-1101 Fi -6 psections on -the lines 13 13-:and5 14'-14 "of .7

Fig. 12. Fig. 15 is. modified Fig. .16 is vertical; sectionitherethroughon'-the line-16l16. Fig. 17 is .an enlarged detail section of a portionof the'lower member of the exten sible bearing or bearing abutment. andbear-' ing block of the dash-pot arrangementzbe;

tween said 'member' and packing therefor.-

.The housings or journal frames 1, 2-,

shown in Figs. 1 andQI'for-the' pair of rolls anenlargecltace. view of1:21 form of dial-and'indicat'lng mecha= 3, 4, are'representative of thehousings ofa commercial type'of rolling mill, knownas a. jump mill,wherein the upper-Jroll'is movably mounted within its ho sing andnormally rests upon :the lower. roll; and moved upwardly by the "work ormaterial to' be r rolledwhen insertedorathrust between the rolls.

The housingsiot types of rollingmills each have'a central vertical bore.for the reception of a nut and 'screwqproviding Y an adjustableabutment *against which bear ing blocks, carried-by the upper roll andslidable 1 within "the housing, engage. or

when the work is" 'inserte d and. thrust be 1 10" strike to limit the.upward thrustof the roll tween the rolls, determining the degree of rollseparatiomwhich degree of roll separation accordingly determines thegauged thickness of the rolled material.

The journal ends of the lower roll are supported upon and journaledbetween tionary bearing blocks or shoes mounted within the housings.Astheupper roll is forced upwardly with each insertion of the workbetween the rolls, heavy thrust-blows are repeatedly imparted tothescrews and their nuts, destroying their accuracy of adjustment andsubtility, necessitating frequent renewal of the parts. Renewal some.-times is very difiicult', as the nut and screw are swaged togetherand-within the bore or socket in the housing.

In Figs. 1 to 8 inclusive my invention is shown as applicable within thehousings of rolling mills in use, replacing the old screw and nut typeof adjustable abutment means for the journals of the upper roll.Referring to these figures, 1,2, indicate a pair of opposite housings orjournal frames which may be mounted in the ordinary way upon a base railor bed, not shown. Each housing is provided with a central verticalopening therethrough to receive the journal ends of the pair of rolls 3,it. As the construction of the housings, roll bearings and adjustingmeans for the bearings, within the housing, for the opposite journalends of the rolls, are the duplicates of each other, the

' detail descriptionoi the parts will be made in the singular in so aras is possible.

The lower roll 3 has its journal ends ene gaged'and bearing between apair of oppositely disposed bearing blocks or shoes 5, 6, mounted withintherecesses in the housings and supported and journaled upon a baseblock or shoe 7, likewise seated and secured within a recess in thehousing. The upper roll is engaged at opposite sides be tween oppositeguide bearing blocks 8, 8, mounted respectively within recesses formedin the housing. These blocks 8, 8, have a 1 plane face, against whichthe journal of the upper roll bears'to guidingly sustain the roll in itsvertical motions as the work is inserted between and discharged from.the rolls. i

An abutment frame 9,is mounted within the journalopeningoi: the housingabove the upper roll, shaped to conform with the upper end of theopening, thus having a shouldered engagement with the housing, andprovided with an upwardly extending cylin- 'drical boss or hub'lOengaged within the bore 11 centrally through the upper end of thehousing.

This frame 9-issecured within the, housing by means of a cap plate 12countermilledto engage into the upper end of the housing bore and seatupon the upper surface of the housing, securely anchoring the cap plate12 in position. A bolt 13 passes centrally through the cap plate withits upper end engaged therewith by means of a nut 14, and the head end15 of the bolt is connected to the upper end of the boss 10 of the frame9. The connection is suchas to provide for convenient insertion andremoval of the bolt The frame 9 is provided at its opposite side withdepending guide limbs l6, l6, bearing against the side walls of thehousing journal opening. The limbs 16 are clamped and anchored withinthe housing by means of cross plates 17, each plate having flanged headsat. its opposite ends, as of li-beam construction shown in Fig. 10, theflanged end or head 19 engaging into recess in'the housing and bearingagainst ashim-block 20. The opposite flanged head 21 of the clamp orcross plate 17 is engaged on one side of the web portion of the plate 17by ashim-block 22 inserted between the fiangedhead 21 and the side faceof the housing. This provides means for securely tying or clamping theguide limbs within the housing against lateral strains or thrusts whichmay be imparted thereto in starting or passing the work between therolls, as the bearing block 26 is guidingly mounted within ways formedin said wings and resting upon the upper side of theoend journal of theupper roll t.

The bearing block 26 is provided. with a shoe insert 27, which engagesthe upper side of the journal of the roll a, the shoe forming a journalbearing for the'upp'er roll when the upward; pressure is brought to bearupon it in the act ofrolling. The bearing block 26 is provided with acentral recess or pocket 28 to receive the plunger or piston end'29 ofthe adjustable bearing abutment block 30 .suspendingly mounted from, theabutment member 9. The adjustable abutment block 30 is provided at itsopposite sides with a pair of sleevesor thiinbles 31 having annularlyflanged heads recessed into the lower side of the block 30 and providinga housing for a spring 32 encircling bolt 33, screw threaded and engagedinto he abutment frame 9 and extended concentermediate adjusting platesand toward the frame 9 unitarily combining the parts and as a unitproviding an extensible abutment for the bearing block otthe upper roll.

A plural series of oppositely disposed wedge-plates 37-are arranged in asuperposed and alternate relation between the end of the abutment frame.9 and the abutment l'ieoenes block 30 for adjusting or raising or lower'ing the abutment block 30 andcorrespond-i ingly regulatingthe-limit-ofupward motion of the bearing block-26,anditslroll i, andthereby regulating the degree-of roll sparation which governs the gaugethicknesso7' Work passed between the rolls.

V The plunger end 29 of the abutment block 30 has its faceprovided-with'i-a series of recesses as clearancelinterstices for pocketing the cushioning liquidor fluid-within the pocketor block 26. V p -cA packing 40 issecured 'upon' th'e bearing block 26, around its pocketon chamber opening bearing against Walls 7 otthe' plunger for confiningthe 'cushioning fluid within. the chamber when the plunger and journalchamber 28-01% the bearing block 26 are forcedtogetherby the upwardthrust of the upper roll, when inserting between the rolls the materialto be rolled; The recesses are proportioned to providea.

capacity for] approximately "the entire volume of fluid within thechamber, permitting the fluid to be displaced from the chamber as theplunger is compressed into the chamberand allow the head ofthe plungerto con tact directly with the bearing below, operating as; a dash-pot totake up the strains,

initially, cushioningthe thrusts as the parts are brought together. Thisdash-pot Earrangement, however, designed isolely for the purpose ofrelieving the parts of sudden shocks or strains without altering ordestroying the degree ofa definite setting,

for which the parts have beeniadjusted to produce a predetermineddegreeof'roll separation. The wedge plates in a plural number aresuperposed up'on'ea-ch other in alternate arrangement and are eachprovided with a slight degree'o'f angle or taper. The angle ortaper isconsiderably less than 7 any angle of friction which may cause anysubstantial readily injured by the repeated upward outward spreadingorlateral influence ofth'e' plates on one another under the pressure ofthe upward thrust of the roll Orpressure transverse to the adjustment ofthe plate,

and receive the roll thrusts substantially as if they were plane flatplates. They "furnish a comparatively large area, providing a veryabutment which cannot be thrusts of the upper roll. The wedge oradjustingplates of eachset are movedsimultaneously as a unit andthesets'relatively in opposing directions toward and from each other foreffecting the necessary adjustment required for roll abutment limits."

With the wedge or tapered "adjusting plates arranged in opposingsets'ofa plural number to each set superposed andin' an a'l ternate orstaggered relation,"t-he degree-of extension, measured perpendicular tothe plane in which the plates areadjustecl'fis compounded by theopposing plates-as they fof the plates and passes of theworkthroughthe'mill with the "roll separation adjusted for each pass, so

' heavy pressure transversely to their line or "slide upon one anotherithrough. Thus a' substantial degree of extension or contraction isproduced-by a comparatively-slight.

degree of plate adjustment. small degree of angleprovides .free a'ndeasyadjustment 7.0""

, setting to micrometric precision.-:: 1 i" 1 l r The plates as unitsthus require but slight adjustment to"changethe degree of roll sep-'aration from oneiset-tingito a second or successive setting; for makingrepeated passes of the work'th rough-the mill for itsreduetion ingaugethickness. It is desirable in;

many instances towmake *three successive the adjusting plates of areduced degree oi taperor incline, they can withstand a very plane ofadjustment without a disturbing their; adjustm ent: setting and beingadjusted in a direction lateral to'the'a'Xisofthe' roll, provided anelongated area :of .overlapl'oi the several plates as a laminated wallextend; 105,

ing parallel withthe'roll axis and cen tral thereto orin "'a'linevertically diametri- 'cally -th'rfough' the roll'axis and of; length Iapproximately equal to; the length of: the

roll journals within' the h'ousings. The 1 10 sprin s yiedingly c'lampthe adjustable or movable." abutment member and plates to the stationaryabutment member under suflicient pressure to prevent any vibration orseparation of the parts as-the rollan'd 31-1 5 its bearing block'deseendafter the work has passed from betvveen the' rolls,='avoiding anypossible chatter or hammerof the plates upon'one' anothe'r, which'may'inju're their sur faeesfondestroy the; plates. -The plates 1'20 areduplicates of each other" and bearno dis tinction as-to the rights andlefts and are easily and conveniently assembled in theii positionbetween the abutment members. The '"plates a're also dimensioned toprovide r25 fora definite 'area of overlap upon "each other attheirmaxim'um degreeof-outward adj ustmel'it, "thereby establishing aminiinuni wall thickness between the abutment mem bersat' the greates't degreeof rollsepa an on ieo that the upwardpressure of the roll is not assevere as for the subsequent passes as the metal cools and resistscompression. l/Vith each adjustment of the plates of the opposing unitprogressively toward each other, reducing the degree of separation, thearea of overlap of the plates is increased, thus progressivelyincreasing the laminated wall thicknessformed by the plates as theupward pressure of'the roll is increased, which is of material advantagein maintaining the accuracy of adjustment and life of the parts, so thatan operator who has acquired skill in visual gauging need.notbenecessarily employed. 7

And with a mill provided with the indicator mechanism, hereinafterdescribed, legibly showing the degree of roll separation for eachadjustment of the plates or extensible bearing, the operator isperceptlbly guided not only as to the degree of adjust ment required foreach pass, but also d1rect ed as to the order and number of passes madeor to be made. The bearing parts are subjected only to a minimum amountof wear for an extended period of mill operation and frequent adjustmentof the indicator mechanism to maintain its reading accuracy iseliminated. I V a The adjusting plates of one set or unit, each at theiropposite sides, are provided with dove-tailed extensions or teeth.engaging respectively with corresponding grooved heads 43, 48, of a pairof limbs 44, 44, arranged at opposite sides of the housing. The limbs44, 44 are fixed to a cross-head 45, guided and slidable vin the guideframe 46, of the bracket 47, fixed to and projecting from the housing.The adjusting plates of the opposite .or second set or unit aresimilarly engaged into the grooved heads of the links 48,48, at oppositesides of the housing and connected to across-head 49 slidable within theframes 46. I

The cross-heads 45, 49, are engaged respectively by the right and lefthand screw portions of the screw shaft 50, journaled at its oppositeends in the journal extensions 51, 52, projecting upwardly from thebracket 47. The screw is provided with a handwheel 53, for manuallyrotating the screw for feeding the cross-heads in a forward or reversedirection for shifting or adjusting the adjusting plates. The adjustingplates have a loose or sliding connection with the grooved heads of thelink members, to which they connect-to accommodate for the com: pressionor expansion motion of the plates, as they are moved toward and fromeach other. Thus, the platesof one set are all moved in unison and at acorresponding rate with those of the second set, whichlikewise.

are moved in unison.

I A pinion 54 is fixed upon the end of the screw shaft 50, meshing witha bevel gear 55, fixed upon a shaft 56, said shaft extending from thescrew mechanism of one housing to the screw mechanism of the secondhousing, for simultaneously transmitting the screw shafts, respectivelyoperating the ad justing plates at the opposite ends of the journals ofthe upper roll, in uniform de grees, thus maintaining the peripheralalignor counter shaft 59 suitably journaled in bearings upon thebrackets 47 of the housings 1 and 2, said shaft extending parallel withand above the shaft 56, and has a handwheel 60 fixed upon one endthereof.

Upon rotaing the hand-wheel 60, motion is imparted to the shaft 59.gears 58 and 57 and shaft 56, rotating the bevel gears 55 of therespective screw mechanism for each housing. The shaft 59 is providedwith a rack gear 61 engaging with, a Vertically disposed rack bar 62slidably mounted and guided within the frame extension 64 of the bracket47 The rack bar, at its upper end, carries a pointer 65 adjustablethereon, movable with the rack bar and along thedial or scale plate66,provided with suitable graduations or scale indications. The scale ordial plate 66 is rigidly fixed to the bracket 47 and at one side or edgelongitudinally thereof is provided with a guide-way or T-groove 67 forreceiving one or a plurality of pointers 68,68, adjustably secured insaid guide-way or groove and adapted to be set at various points alongthe scale, to which the movable pointer 65 may be adjusted. Thisprovides definite, quickly legible, indicating points in makingadjustments and coordinately indicating the amount of adjustment fordegrees of roll separation and for various definite roll settings forsuccessive work passes between the rolls, which is of considerableadvantage in rolling mills where the work is repeatedly passedbetweenthe rolls of a single mill for roughing and finishing, requiring anadjustment of the rolls for each pass of the material between the rolls,to reduce 5 scribed figures-is capable of being applied instance, is notprovided mam the thickness of the work and accomplished to a degree ofaccuracy. V i j The indicating mechanism is also advantage for initial,definite and micrometric adjustment or setting of the parts forobtaining a predetermined gauge of roll separation. In theniodificationshown in Figsl inclusive, the construction of theadjustingplates, movable abutmentmember and bearing block are substantially thesame as those heretofore describedand illustrated in Figs.

611 inclusive. The stationary abutment member. however, isnot proi' idedwith the elongated hub 10. The housing, in the latter with the enlargedcounter-bore extending vertically therethrough, but merely with the boreto receive a bolt 70 having its head engaged in a socket formed in thestubhub portion of the stationary abutmentinember 9, for clamping orsecuring the'abutment member 9 'iwithintors, are rigidly heldWithin'jhousings of mills in'use.

"In Figs. 1516, a modification of'dial-indicating mechanism isdisclosed, iii which the shaft 59 carries a gear or pinion 73 in meshwith a gear 74 mounted'upon thestub Y shaft 75 fixed to the bracketextension 76.

-7 7 indicates a stationary dial fixed to the bracket extension 76,provided with-av semicircular T-groove 7 9 along its periphery, in

which the adjustable pointers are mount ed and secured; The hub 81 ofthe gear 74: clarries'a pointer 82, moving in an are along the dial 77.-This pointer is frictionally clamped upon the hub of the gear 7 4:,'S 0as to be adjustable thereon, to enable the pointer tobe set'withrelation to the indicating .dial for an; accurate reading of thedegrees'of adjustment imparted'to the" screw shaft and their connectedadjusting plates; 7

The gearing or transmitt ng ratios between the points and screw shaftfor the adjusting plate is-such as to magnify the caliper reading at thedial in both forms, so

that the'hand wheel can be operated; with greater saving and rapidityfor making each adjustment "accurate, which. is a; valuable feature forsome classes of work, although it is [obvious that this maybe readilymodified tojmeet with different'mill practices.

. prising .a pair of members,

Having described my inventiom I 'iclaim:

1L In a rolling mill, a pairjof housings, a pair of rolls journaled insaidhousings, one of said rolls movable insaid housings for rollseparation, bearing and abutment-means mounted. in each of said housingsfor said movable roll, respectively comprising a bearing block guidinglysupported withthehousing engagingjand .nioving I with {Said r ll, a

stationary abutment member fixed within said housing, a movableabutmentmember] intermediate said stationary abutment-mem her and bearing block, an d a pluralseries of tapering plates "intervening said abutmentmember, and cooperating for'moving said movable abutmentmember toward or'fr om' said stationary memben iff, 2. Ina rollingmilhapair ofhousings,la pair of rolls journaled insaidfhousi-ngs, one of said rollsmovable in said'h'ousings forrollseparation, abutment means mounted ineach o:sa1d,.housings for. 'saidinovable-roll',re}.

speetively comprising astationaryiabut nent I Inember,.a movableabutment member and a plural series of tapering plates-intervening saidabutment" member, andgcooperating for moving-said movable-abutmentmember 7 toward or from'said stationary "membea,

3. In arolling mill, apair pf. housings, a

pair of rolls j ournaled" in saidhousin'gs; one

ofsaid rolls movableinsaid' housings for roll separation, bearing andlabutmentineans 'moui ted in each of said-housings for. said movableroll, respectivelycoinprising a'bearing engaging and movingwithlsaidroll, a T stationary abutment-member fixed within said housing, amovable abutment member] intermediate said stationary abutment memebeipand bearing block, and a plural series 9 f oftaperingplatesinterveningsai'dfabutment 1' member with thoseof oneseriesinterlapped with those of; asecond cooperating'for moving saidmovable abutment member toward or from said stationary inember,and meansfor moving the platesof bothseries simpl taneously toward and from eachother;

4:. In a rolling mill, a pair of housingsfa air o frolls journaled insaidhou'sin'gsone 1; v

roll separation, extensible abutment means of said rolls movable insaidhousings for mounted within each o'f said housings,

against which said movable roll bearsfor rollseparation when the workispassedbetween, the rolls, said abutment means com other movable, andtapering" plates: oppositely, disposed andinterlapped, intervening saidmembers, and at their point of interlap j V providing a laminated wallaligned andpar-' allelto the axis of 'said r011 5'. In a rolling mill, apa r of housings,a-

pair ofrolls journaled in said housings, Ione ofsaid rolls movable insaidjhousing'sfdr roll separation, extensible abutment ,means ing blockguidinglysupport'ed with the' hous- 10 dian'ietric with the axis mountedwithin each of said housings, against which said movable roll bears forroll separation when the work is passed be tween the rolls, saidabutment means comprising a pair of members, one fixed and the othermovable, and tapering plates oppositely disposed and interlapped,intervening said members, and at their point of interlap providing alaminated Wall diametric with and longitudinal to the axis of said rollconnecting said members.

6. In a rolling 'mill, a pair of housings, a pair of rolls journaled insaid housings, one of said rolls movable in said housings for rollseparation, extensible abutment means mounted within each of saidhousings, against which said movable roll bears for roll separation whenthe work is passed between the rolls, said abutment means comprising apair of members, one fixed and the other movable, and tapering platesoppositely disposed and interlapped, intervening said members, and attheir point of interlap providing a laminated wall diametric with andlongitudinal to the axis of said roll connecting said members, andtension means for unitarily combining said members and plates. 7 I

7. In a rolling mill, a pair of housings, a pair of rolls journaled insaid housings, one of said rolls movable in said housings for rollseparation, extensible abutment means mounted within each of saidhousings, against which said movable roll bears for roll separation whenthe work is passed between the rolls, said abutment means comprising apair of members, one fixed and the other movable, and tapering platesoppositel disposed and interlapped, intervening said members, and attheir point of interlap providing a laminated wall diam'etric with andlongitudinalto the axis or" said roll connecting said members, tensionmeans for unitarily combining said members and plates, and means forsimultaneously adj usting said plates for changing the degree of rollseparation, I ,p 8. In a rolling mill, a pair of housings, a pair ofrolls journaled in said housings, one said rolls movable in saidhousings for rollseparation, extensible abutment means mounted withineach of said housings against which said movable roll bears for rolllimit offseparation when the work is passed between the rolls, saidmeans comprising a pair of members, one fixed within the housing andother movable therein, in termediate said roll fixed abutment member,and tapering plates interposed between said member arranged inoppositely movable sets, the platesfsuperposed and in terlapped,combining at their points of interlap to' provide alaminated centralwall intervening aridconnecting said members,

of'said roll.

9. In a rolling mill, a pair of housings, a pair of rolls journaled Insaid housings,

one of said rolls movable in said housings for roll separation,extensible abutment means mounted within each of said hous ings, againstwhich said movable roll bears for roll limit of separation when the workis passed between the rolls, said means comprising a pair of members,one fixed within the housing and the other movable therein intermediatesaid roll and fixed abutment member, and tapering plates interposedbetween said member, arranged in oppositely movable sets, vthe platessuperposed and al- 7 ternately 'interlapped, combining at their pointsof interlap to provide a laminated central wall intervening andconnecting said members, diametric with the axis of said roll.

10. An extensible journal bearing, comprising a housin a journal, afixed and movable bearing member within said housing for said journal,and tapering plates interposed between said members arranged inoppositely movable sets, the plates superposed and interlapped,combining at their points of interlap to provide a laminated centralwall intervening and connecting said members, diametric with the axis ofsaid journal and means for simultaneously adjusting the opposing sets ofplates, and the plates of a set unitarily. Y

11. In a rolling mill, a pair of housings, a pair of rolls journaled insaid housings, one of said rolls movable in said housings for rollseparation, extensible abutment means mountedwithin each ofsaid housingsagainst which said movable, roll bears for roll limit of separationwhenthe work is passed between the rolls, said means comprising a pair ofmembers, onefixed within;

members and abutment means.-

12. In a rolling mill,a pair of housings,-

a pair of rolls journaled in said-housings, one of said rolls movable insaid housing for roll separation, extensible abutment means mountedwithin each of said housings, against which said movable roll bears forroll limit of separation when the'work is passed between the rolls, saidmeans comprisinga pair of members, one fixed within the housing and, theother movable therein its 1 member within said housing for said jour-'intermediate 'saidroll and fixed abutment member, and tapering platesinterposed between said member arranged in oppositely movable sets, theplates superposed and a l-] ternately interlapped, combining at theirpoints of interlap to provide a laminated central wall intervening andconnecting said members, diametric with the axis of said roll, and meansrespectively, for each set of plates, engaging the plates at oppositesides thereof, for adjusting the plates of the set as said. membersarranged "in opposite sets,

movable transversely to a line longitudinal withthe axis of the journal,the plates superposed and interlapped, Combining at their points ofinterlap to provide a laminated centralwall intervening and connectingsaid members diametric with the axis of said journal and means forsimultaneously adjusting the opposing sets of plates, and the plates ofa set unitarily.

14:. A journal bearing, comprising a housing, a journal, a fixed and amovable bearing nal, tapering plates interposed between said membersarranged in opposite sets movable transversely to a line longitudinalwith the axis oi the journal, the plate superposed and inter-lapped,combining at their'points of interlap to provide a.laminated centralwall intervening and connecting said members diametric with the axis ofsaid journal, and means for yieldingly compressing said members andplates together and sustaining the same as a unit. 1

15. A journal bearing, arhousingga journal, an extensible bearing forsaid'journal mounted within the housing, comprising a stationary memberfixed within the housing, a movable member guidingly supported upon saidstationary member, and tapering plates relatively oppositely arrangedand superposed upon one another to provide a laminated central wallconnecting said member, and adjustable for extending or contracting saidmembersfrom and toward each other and means for adjusting the opposingplates simultaneously in opposing directions. v i

16. In a journal bearing, a housing, extensible bearing means,comprising a fixed and movable bearing member within the housing,tapering plates interposed between;

said members, arranged in opposing units of a plural number of plates toeach unit and interlapped centrally of saidmember to provide a laminatedwall connecting said member, transmitting means arranged at oppo sit-esides of the plates of each unit engaging" therewith for unitarily:moving said platesto "an'd'fromthe' plates 'ofithe opposite 17. 'In' ajournal' bearing, a umniex and movable bearing member I within thehousing, tapering plates interposed-- between a said members,"arranged'in opposing units of plural number of'plates to-ea'chvunitfand tensible; bearing means, comprising a fixed interl'app'edcentrally of said member-to provide a laminated wallfeonnecting saidmem' ber, said wallincreasingin width "as the plates ofthe opposingunitsare moved to? 'ward: each other, I transmitting means ar p j i rangedat: opposite sidesof the pflat'es'ofeja'ohv unit engaging therewithqforunitarily, moving said platesfto andirom the plates o'ftheopposit'e'unit, a dtensimimeans for-yield ingly compressing said membersand plates together,

181111 a journal; bearings housing, ex/- tensible bearing means, 1comprising 'a' fixed and movable bearing member Within the housing,tapering plates interposed between said members, arrangedin opposingunits of a plural number of plates to each unit and interlappedcentrally of said member to provide a laminated wall connecting saidmemher, said plates asunits beingmovable toward andfrom each othertransverse tothe axis of the journal engaged in said housing,transmitting means arranged at opposite sides of'the plates of each unitengaging I V therewith for unitarily moving said plates to and from theplates ofthe opposite unit.

19. In a journal bearing, a; housing, ex-

tensible bearing means, comprising a fixed and movable bearing memberwithin the id housing, tapering plates-interposed between said members,arranged in opposing units of a plural number of plates to each unit andinterlapped centrallyof said'member to proii vide a laminated wallconnecting said member, transmit ting means'arranged at opposite sides.of the plates of -each unit engaging therewith for unitarily moving saidplates to and from the vplates of'the opposite unit,

said plates slidably connecting with said transmitting'meansstransversely to the transmitting motion of said mean's.

' 20. In a journalbearing, a housing, ex-' tensible bearing means,comprising a fixed and m'ovable bearing ;member within the 1 housing,tapering plates interposed between I said members, arranged in-opposingunits of- I a pluralnumber of plates to each unit and interlappedcentrally of said member to provide a laminated Wall connecting saidmember, a screw shaftforadjusting said plate units, and-meansconnectingsaid screw and plate 'units at said plates.

121.111 a journalbearing, ahousing, ex-

relatively opposite sides of tensible, bearing means, comprising a fixedand movable bearing member within the housing, tapering platesinterposed between said members, arranged in opposing'units of apluralnumber of plates to each unit and interlapped centrally of saidmember to pr0- vide a laminated wall connecting said member, a screwshaft foradjusting said plate units simultaneously in relativelyopposite directions, links and nut means connecting said plate units andscrewshaft at opposite sides of the plates, said plates transversely,slidably connecting with their respective links.

22, In a journal bearing, a-housing, eX- tensible bearing means,comprising a fixed and a movable member within the housing, taperingplates interposed between said members oppositely disposed, a screwshaft for oppositely adjusting said plates, transmission gearing forrotating said screw, an indicator transmitted by said transmissiongearing, and dial in line with the movement of said indicator forindicating the degree of adjustment of said plates.

23. In a journalbearing, a housing, eX- tensible bearing means,comprising a fixed and movable member within the housing, taperingplates interposed between said member oppositely disposed, a screw shaftfor oppositely adjusting said plate, transmission gearing for rotatingsaid screw, an indicator transmitted by said transmission gearing, dialin line with themovement of said indicator, having graduations forindicating the degree of adjustment of said plates, and a pointeradjustably mounted on said dial along the graduations thereof.

In witness whereof, I hereunto subscribe my name, as attested by the twosubscribing witnesses.

- JOHN N. QUINN. Witnesses:

L. A. BECK, v M. S. BARRON.

